The oldest sponge

The recently discovered, millimeter-long fossilized sponge (pictured here) has helped scientists identify when the sponge lineage diverged from that of more familiar animals.  This sponge lived 600 million years ago, tens of millions of years before sponges were thought to have first appeared in the historical record.

By | 2015-12-28T10:49:41+00:00 December 28th, 2015|Categories: Archaeology, Current Events|0 Comments

Shrinking conch: size-selective harvest and rapid evolutionary change

 

1748-9326_8_1_015016 Figure 1. Growth of Strombus pugilis, and measures of size and maturity used in this study. (g) is an example of a large mature animal from contemporary populations, while (h) is one of the larger animals from Prehuman populations, exemplifying the shift in size due to human […]

By | 2017-12-01T14:02:50+00:00 March 30th, 2014|Categories: Archaeology, Conch, economy, Food, Fossils, Invertebrates|0 Comments